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Showing 8,754 Results. Searched 200,636 documents.
Barrier Reefs and Saline Residues of the Permian Basin
E. Russell Lloyd
West Texas Geological Society
... the reef the dolomites grade laterally into anhydrite and then into salt. Clastic sandstone and, in some cases, shale are interbedded...
1975
Stratigraphy of the Glen Rose Formation, Western Gulf Coastal Plain
Jeffrey G. Pittman
GCAGS Transactions
... an evaporite zone (solution zone on outcrop) on the Edwards Plateau that lies at the stratigraphic position of the third anhydrite stringer above the Ferry...
1989
Upper Ismay Reservoir at Tin Cup Mesa Field
Wilson H. Herrod, Paul S. Gardner
Rocky Mountain Association of Geologists
... the reservoir with approximately 4.6 million barrels of oil (stock-tank barrels in place). The vertical seal is anhydrite which thins over the field...
1988
Hobbs Field, Lea County, New Mexico
Ronald K. DeFord , Edwin A. Wahlstrom
AAPG Bulletin
... of the discovery, on June 10, 1929. The Bowers No. 1 disclosed the "Top anhydrite" and "Brown lime" markers approximately 100 feet higher than...
1932
Identifying Salt Suture Zones and Lithological Changes of the Louann Salt in the Gulf of Mexico Basin, Louisiana
Jamie Singer, Julie Bloxson, and William A. Heins
GCAGS Transactions
..., and William A. Heins 2025 251 74 1 The Jurassic Louann Salt is an extensive evaporite series consisting of interbedded halite, anhydrite, dolomites...
2025
Investigating H2S Occurrence in Bakken Oil-Producing Wells Using Sulfur Isotopes in Gas, Water, and Rock Samples
Alexander Chakhmakhchev, Marc D. Kurz, T. Austin McRae, Xue Yu, Arash Abarghani, Darren D. Schmidt, Nicholas A. Azzolina, Bethany A. Kurz, James A. Sorensen
Unconventional Resources Technology Conference (URTEC)
... the TSR process because of the different sulfur isotope signatures in the TF anhydrite – a potential source of sulfate needed for the TSR reaction and well...
2024
Diagenesis and Preservation of Porosity in Norphlet Formation (Upper Jurassic), Southern Alabama
S. A. Dixon , D. M. Summers , R. C. Surdam
AAPG Bulletin
... in time. The most important of these circumstances were the following. (1) The lack of pervasive early calcite or anhydrite cements found in the large...
1989
REGIONAL GEOLOGY AND PETROLEUM POTENTIAL OF THE LOWER AMARANTH FORMATION, COULTER - PIERSON AREA, SOUTHWESTERN MANITOBA
MUZAFFAR HUSAIN
Williston Basin Symposium
... and the 'Main' Sand is the primary producer (2-5 m thick). Porosity is generally intergranular and variable due to anhydrite occlusion. Entrapment...
1991
A Subsurface Example of a Dolomitized Middle Guadalupian (Permian) Reef from West Texas
Susan A. Longacre
Special Publications of SEPM
... are mechanical degradation and biologic degradation (micritized rims), leaching (most of which was early and fabric-selective), gypsum-anhydrite transformations...
1983
Regional Structure, Stratigraphy, and Oil Possibilities of the South Florida Basin
George O. Winston
GCAGS Transactions
..., are cyclic in nature, and consist of limestone, dolomite, and anhydrite. Comanchean units favorable for oil production are the "brown dolomite...
1971
Geologic Section from Fisher County Through Andrews County, Texas, to Eddy County, New Mexico
Robert I. Dickey
AAPG Bulletin
... this section consists of shale, gypsum, anhydrite, and dolomite. The Clear Fork group on the surface consists of the Arroyo formation at the base, the Vale...
1940
Diagenetic Influence on Reservoir Development and Quality in the Smackover Updip Basement Ridge Play, Southwest Alabama
D. J. Benson and E. A. Mancini
GCAGS Transactions
... dolomite cements, dissolution, emplacement of hydrocarbons, and precipitation of anhydrite and baroque dolomite cements. The products of this complex...
1999
Integration of Rock Fabrics and Stratigraphy for Petrophysical Quantification of Reservoir Framework
Rebecca R. Harrington, F. Jerry Lucia
AAPG Special Volumes
... because of abundant poikilotopic anhydrite. Oomoldic limestone, such as that in sequence L2.1, is also locally common. The uppermost L2.3 reservoir...
2012
STEELMAN FIELD SOUTHEASTERN SASKATCHEWAN
J. Nesbitt
Williston Basin Symposium
... of the Steelman field can be readily divided into an upper carbonate and a lower anhydrite, each about thirty feet in thickness...
1958
Lithology Crossplots: Applications in an Evaporite Basin–The Maverick Basin of Southwest Texas
J. V. Crues, Jr.
Bulletin of South Texas Geological Society
... is difficult throughout the Cretaceous series due to the varied lithology. In the Glenrose, which consists of dolomites, limestones, and some anhydrite...
1980
Field Study: Kiblah Field, Miller Co., Arkansas
Frank N. Blanchard Jr.
Shreveport Geological Society
... Lake Anhydrite Flowed 168 bbls. oil in 12 hours 43o A. P. I. 20/64" and 1/4" 265# on 20/64"; 381# on 1 /4". Well No. 2: Location: Producing Formation...
1958
Hydrocarbon Potential in the Middle Devonian Ratner Dolostone: Southeastern Saskatchewan
Andrew R. Nimegeers
Williston Basin Symposium
... dolostone and enterolithic anhydrite. The lateral distribution of Ratner dolostone reservoirs is related to the distribution of 1) up-dip, adjacent reef...
2005
Facies Analysis and Distribution of the Mississippian Frobisher Beds in Southeastern Saskatchewan
Holly Shoulak and Hairuo Qing
Williston Basin Symposium
...-boundstone Marker 2 laminated-massive dolomitic lime mudstone 3 massive, laminated to nodular anhydrite Evaporite (Hastings Evaporite) 4 silty...
2025
The Upper Birdbear Formation (Nisku) of Western North Dakota: Another Emerging Williston Basin Horizontal Play
Jay Sperr and Randolph Burke
Saskatchewan Geological Society
... of this zone may cover 250 square miles (647.5 km²) and yield reserves from 25 to 35 million barrels (4.0 to 5.6 x 106 m³) of oil. Oil is trapped by anhydrite...
2006
The Evaporite Deposits in Bamnet Narong Area, Northeastern Thailand
Sombat Yumuang, Chaiyudh Khantaprab, Malatee Taiyagupt
Geological Society of Malaysia (GSM)
... itional changes. The lower evaporitic cyc le is characterized, from bottom to top, by ferruginous sandstone, calcareous sandstone, an anhydrite zone...
1986
Structural Control of the Canadian River in Western Oklahoma
Harold A. Brown
Oklahoma City Geological Society
... and the structural configuration illustrated on the base of Blaine anhydrite has not been significantly altered except in section 5-15N-18W, Custer County...
1970
Examining the significance of the converted-modes beneath an ultra-high-velocity caprock: Physical modeling and a Gulf of Mexico salt proximity VSP survey
Jingjing Zong, Yukai Wo, Jizhong Yang, Nikolay Dyaur
International Meeting for Applied Geoscience and Energy (IMAGE)
..., anhydrite) deposits over the salt. Strong image artifacts can be caused by a common acoustic imaging strategy. Except for the better known S-mode...
2022
Geology of the Mondak West and Mondak Fields in Richland Co., Montana and McKenzie Co., North Dakota
WILLIAM J. BYRD
Montana Geological Society
... interbedded evaporites and shales. In the lower Paleozoic (Ordovician, Devonian and Lower Mississippian) the evaporites are primarily anhydrite...
1978
An oil-productive dolomitized calcisponge-microbial reef facies on the Upper San Andres (Guadalupian, Middle Permian) shelf margin, East Vacuum Grayburg San Andres Unit (EVGSAU), Lea County, New Mexico
David M. Orchard, Gregory P. Wahlman, Govert J. Buijs
West Texas Geological Society
..., fusulinids and other bioclastic debris, and massive anhydrite. Porosity in the doloboundstone intervals is patchy and partially occluded by anhydrite. Large...
2011
Applications and Limitations of Inorganic Geochemical-Chemostratigraphic Records From the Devonian Three Forks Formation, North Dakota, USA
Harry Rowe, Evan Sivil, Austin Morrell, Pukar Mainali, Gerry Torrez, Amanda Musgrove, Jarred Garza
Unconventional Resources Technology Conference (URTEC)
... hin orks ntent is n. used as an anhydrite pro n oxy. Finally, th Mg/Al ratio can largely be used as a dolomite/clay proxy, as thes two he o se...
2017